Comparison of Speed Control of DC Motors with Buck, Buckboost and CUK Converter

Nowadays motor is one of the main equipment in our lives. The speed control of dc motors can done efficiently in both acceleration and deceleration. DC drives are mainly used in the industrial applications because of its less cost compared to AC motors, reliability, ease of application etc. This paper presents a comparison study of speed control of DC motors using buck, boost and cuk converters. The design is done for each converter separately and by changing the duty ratios the speed control can be done. The simulation results and the experimental results are provided for each converter. Efficiency comparison are done and this will be helpful for proper selection of converters for desired applications.